Hesitation when accelerating - Page 2 - 2014+ Jeep Cherokee Forums
User Tag List

 10Likes
Reply
 
LinkBack Thread Tools
post #11 of 26 (permalink) Old 04-13-2017, 08:46 AM
Hardcore Member
 
dhh3's Avatar
 
Join Date: Aug 2016
Location: Fort Wayne, Indiana
Posts: 1,217
Garage
Thumbs up

Quote:
Originally Posted by 007 View Post
Mine seems to be more of a tranny thing than an engine thing. The rpms spin up but nothing happens for about 3 seconds, then BOOM!
Same here. It was like the transmission was not ready. Now it is. Can't explain it. But, I am enjoying it!
007 likes this.

2016 Cherokee Trailhawk: Mango Tango Pearl Coat over Black.
OPTIONS: Every Available Factory Option/Package Except Remote CD Player.
MODS: Whispbars; Mopar Cargo Cover; Mopar Cargo Mat; Mopar/KICKER 9 Speaker Upgrade; KICKER Sub and Amp; Ziebart Undercoating; aFe CAI.
FUTURE MODS: Remote CD Player; Mopar Rock Rails; Rear Fog Lights.
dhh3 is offline  
Sponsored Links
Advertisement
 
post #12 of 26 (permalink) Old 04-13-2017, 09:29 AM
Enthusiast Member
 
BurtonRW's Avatar
 
Join Date: Jul 2015
Location: Maryland
Posts: 253
My 2015 TH has done that for all 73K miles with no changes regardless of updates. I know a couple of times that it almost got me killed, I'm pretty sure the ESS was kicking in when I went from brake to gas, but it's definitely been the tranny most of the time - just not ready when I am. I've gotten used to it.

In the event that I really have to hit a gap in oncoming traffic, I've had good success just flooring it (which does, in fact, almost red line the tach), spinning a little, and then accelerating to speed before anyone catches up with me.

Shouldn't have to do that, though.

-Rob
007 likes this.
BurtonRW is offline  
post #13 of 26 (permalink) Old 04-13-2017, 11:16 AM
Enthusiast Member
 
Join Date: Nov 2014
Location: Maryland
Posts: 220
Mine happened after I received S55 update.

2015 Jeep Cherokee 4x4 Limited V6 w/ Uconnect 8.4AN
Robo606 is offline  
 
post #14 of 26 (permalink) Old 04-13-2017, 12:03 PM
Member
 
Join Date: Jun 2015
Location: Western New York State
Posts: 34
3-2-1 downshift

Quote:
Originally Posted by rdubbs View Post
I have been experiencing hesitation when accelerating, when you start to accelerate the car hesitates as the rpms rev up then the car finally kicks into gear. It usually happens when coming to a short/not full stop, which is frequent in the city. I have almost gotten into an accident three times because of it. This has been happening since I last took it in to the shop in late 2015 (was purchased in Nov 2013). Is there a fix for this? Should I take it in? I am a bit nervous since I have had really bad experience with their service in the past.
I think Jeepster1 is correct. This is likely not an engine hesitation problem, but rather a transmission downshift problem. Check out the other transmission forums for lots more info. Jeep changed the software to skip 2nd gear on downshift due to a transmission design flaw. That's why you didn't see it until you had it in the shop and they did the software update. To test the theory, see if the problem clears up when you use snow mode, as snow mode will use 2nd gear (not 1st) for starts. You can also see what gear it is in when coming to a stop by briefly moving the shifter to manual mode. I bet it goes directly from 3rd to 1st, but only after a complete stop. My 2015 Cherokee Limited did the same thing after a transmission control module flash at about 7k miles. After numerous trips to the dealer, I opened a case with FCA and eventually (after lots more visits and phone calls) got a new transmission. The new transmission (redesigned to fix the design flaw) also allowed a newer version of software to be installed. Problem solved.
Jeepster1 and Array like this.
Klem is offline  
post #15 of 26 (permalink) Old 04-13-2017, 12:20 PM
Premium Member
 
Montaska's Avatar
 
Join Date: Sep 2016
Location: Alaska
Posts: 120
Quote:
Originally Posted by Klem View Post
I think Jeepster1 is correct. This is likely not an engine hesitation problem, but rather a transmission downshift problem. Check out the other transmission forums for lots more info. Jeep changed the software to skip 2nd gear on downshift due to a transmission design flaw. That's why you didn't see it until you had it in the shop and they did the software update. To test the theory, see if the problem clears up when you use snow mode, as snow mode will use 2nd gear (not 1st) for starts. You can also see what gear it is in when coming to a stop by briefly moving the shifter to manual mode. I bet it goes directly from 3rd to 1st, but only after a complete stop. My 2015 Cherokee Limited did the same thing after a transmission control module flash at about 7k miles. After numerous trips to the dealer, I opened a case with FCA and eventually (after lots more visits and phone calls) got a new transmission. The new transmission (redesigned to fix the design flaw) also allowed a newer version of software to be installed. Problem solved.
You are correct, I have been using snow-mode for the past 4 months and didn't notice this issue until last week when it got into the 50's and the snow melted, thus putting the KL into Auto.

Current: 2016 KL Latitude V6 ADI
Past: 1997 ZJ, 2003 WJ, 2007 JK
Montaska is offline  
post #16 of 26 (permalink) Old 04-13-2017, 10:24 PM
Enthusiast Member
 
Join Date: Nov 2014
Location: Maryland
Posts: 220
Quote:
Originally Posted by Klem View Post
I think Jeepster1 is correct. This is likely not an engine hesitation problem, but rather a transmission downshift problem. Check out the other transmission forums for lots more info. Jeep changed the software to skip 2nd gear on downshift due to a transmission design flaw. That's why you didn't see it until you had it in the shop and they did the software update. To test the theory, see if the problem clears up when you use snow mode, as snow mode will use 2nd gear (not 1st) for starts. You can also see what gear it is in when coming to a stop by briefly moving the shifter to manual mode. I bet it goes directly from 3rd to 1st, but only after a complete stop. My 2015 Cherokee Limited did the same thing after a transmission control module flash at about 7k miles. After numerous trips to the dealer, I opened a case with FCA and eventually (after lots more visits and phone calls) got a new transmission. The new transmission (redesigned to fix the design flaw) also allowed a newer version of software to be installed. Problem solved.
I have never lost my second gear, even after the R01 flash (I waited till Rev. C) and S55 flash. In fact, when I experienced the hesitation the other day, I flipped the stick over, and it showed "2."

2015 Jeep Cherokee 4x4 Limited V6 w/ Uconnect 8.4AN
Robo606 is offline  
post #17 of 26 (permalink) Old 04-14-2017, 07:20 AM
Premium Member
 
Jeepster1's Avatar
 
Join Date: Dec 2013
Location: West Central Illinois by the old Mississippi.
Posts: 3,735
Garage
Quote:
Originally Posted by Robo606 View Post
I have never lost my second gear, even after the R01 flash (I waited till Rev. C) and S55 flash. In fact, when I experienced the hesitation the other day, I flipped the stick over, and it showed "2."
On a 2015, as yours, it depends on your build date. I believe it was mid 2015 production that FCA started to use the new hardware equipped transmission. If you had the older style transmission you would not have 2nd on the downshift. 2nd was removed on the older transmissions for durability issues as part of the RO1 and for me it was a May 2014 required update that removed it. All those TSB's are based on VIN number. If your VIN falls after production date on the new hardware transmission then you would have gotten the appropriate software to allow 2nd.
If you have the old hardware equipped transmission there is actually no way you will have 2nd. The only way in reality to have retained it is to never had an update.
So obviously you have the newer hardware transmission. If not I need to know the secret TSB that returns 2nd on an older hardware trans.
Shoulder likes this.

2014 Cherokee Limited 4x4
V6 w/ AD2
Tech Group (both parts)
Luxury Group
Tow Group
Navigation
Cherry Red
12/11/13 build
Max Care Life Service Plan
Jeepster1 is offline  
post #18 of 26 (permalink) Old 04-14-2017, 04:44 PM
Member
 
Join Date: Mar 2017
Posts: 3
Quote:
Originally Posted by 007 View Post
Mine seems to be more of a tranny thing than an engine thing. The rpms spin up but nothing happens for about 3 seconds, then BOOM!
I think that's fairly common with this transmission. My 2015 Limited does it frequently.
007 likes this.
yosh02 is offline  
post #19 of 26 (permalink) Old 04-14-2017, 08:47 PM
Enthusiast Member
 
Shoulder's Avatar
 
Join Date: Dec 2016
Location: Madison, WI
Posts: 221
Mine also does this, and I've simply learned to feather the throttle to the point where I don't get that bothered by it, but it does sometimes become a bit annoying, especially around town. I figured since I still my powertrain warranty, I can get it taken care of between now, and 2019 or within the next 42k miles.

If it becomes much more annoying to the point where I cannot stand it, and/or the transmission begins to fail, then I'll hope to get a new transmission, and take it in. If I have to take Badger in for something else though down the way, I'll bring up the lag/hesitation situation.

2014 Cherokee Trailhawk V6: Deep Cherry Red w/ hood decal
Cold Weather Package | Tow Group | Convenience Package | Leather-trimmed Bucket Seats | Panoramic Sunroof | CD Player | 8.4Nav | 9-Speaker Sound | Tonneau Cover | Off-Road Accessory Kit
Shoulder is offline  
post #20 of 26 (permalink) Old 04-14-2017, 09:28 PM
Member
 
Join Date: Feb 2017
Posts: 31
Hook up an OBD2 code reader and see if you get P0810. I did. The jeep gave me no warning but it has an error code. Clutch position module which is definitely crucial to the transmission. I took it in to the dealer and they confirmed it but said it wasn't a driveability issue. I have an appointment for May 3rd to fix it.
DarkHawk Down is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the 2014+ Jeep Cherokee Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



  Similar Threads
Thread Thread Starter Forum Replies Last Post
Humming noise when accelerating super5hoon Wheels, Tires, Brakes, and Suspension 5 01-09-2017 01:09 PM
Vibration when accelerating BlueWolf Engine and Technical Discussion 172 09-18-2015 05:01 PM
Shifting hesitation cpolee Engine and Technical Discussion 1 08-12-2015 11:15 AM
Wobble while Accelerating Help yllwjckt07 Engine and Technical Discussion 87 08-23-2014 10:49 AM
Does transmission TSB fix hesitation when starting? Yosh Engine and Technical Discussion 1 07-30-2014 06:24 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On